2017 Oliver's Castle formation
|
Reconstruction of the 2017 Oliver's Castle formation | ||
| 1. |
| Draw a circle. Draw the horizontal and vertical centerlines. |
| 2. |
| Construct the inscribed regular 27-sided polygon of circle 1, pointing down. Number the angular points clockwise 1 - 27, starting from the top. |
| 3. |
| Draw ray nr. 6 of polygon 2 (from the center to angular point nr. 6). |
| 4. |
| Draw ray nr. 7 of polygon 2. |
| 5. |
| Construct a line from the intersection of line 3 and circle 1, perpendicular to the horizontal centerline. |
| 6. |
| Construct a circle concentric to circle 1, passing through the intersection of lines 4 and 5. |
| 7. |
| Construct a line from the intersection of line 3 and circle 6, perpendicular to the horizontal centerline. |
| 8. |
| Construct a circle centered at the intersection of lines 4 and 7, tangent to circle 6 at the righthand side. |
| 9. |
| Construct a circle concentric to circle 8, tangent to circle 1 at the righthand side. |
| 10. |
| Copy circles 8 and 9 twenty-six times, to the corresponding positions with respect to the other angular points of polygon 2, as shown. |
| 11. |
| Circles 1, 6, 8, 9, and 10, are used for the final reconstruction. |
| 12. |
| Remove all parts not visible within the formation itself. |
| 13. |
| Colour all areas corresponding to standing... |
| 14. |
| ...or to flattened crop, and finish the reconstruction of the 2017 Oliver's Castle formation. |
| 15. |
| The final result, matched with the aerial image. |
| Copyright © 2017, Zef Damen, The Netherlands |
